Hi Yunfei, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on media-tree/master] [also build test WARNING on next-20211215] [cannot apply to v5.16-rc5] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Yunfei-Dong/Support-multi-hardwa... base: git://linuxtv.org/media_tree.git master config: arm64-randconfig-r015-20211216 (https://download.01.org/0day-ci/archive/20211217/202112170440.wTkVV1Cz-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project dd245bab9fbb364faa1581e4f92ba3119a872fba) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/0day-ci/linux/commit/7ce79e6a446bd8e992083b0fb72f09340... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Yunfei-Dong/Support-multi-hardware-decode-using-of_platform_populate/20211216-174823 git checkout 7ce79e6a446bd8e992083b0fb72f0934009ca99d # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/media/ mm// If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): dev->msg_queue_core_ctx.ready_num); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/platform/mtk-vcodec/mtk_vcodec_util.h:39:61: note: expanded from macro 'mtk_v4l2_debug' #define mtk_v4l2_debug(level, fmt, args...) pr_debug(fmt, ##args) ~~~~~~~~~~~~~~~~^~~~~ include/linux/printk.h:574:26: note: expanded from macro 'pr_debug' dynamic_pr_debug(fmt, ##__VA_ARGS__) ~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~ include/linux/dynamic_debug.h:163:22: note: expanded from macro 'dynamic_pr_debug' pr_fmt(fmt), ##__VA_ARGS__) ~~~~~~~~~~~~~~~^~~~~~~~~~~~ include/linux/dynamic_debug.h:152:56: note: expanded from macro '_dynamic_func_call' __dynamic_func_call(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~ include/linux/dynamic_debug.h:134:15: note: expanded from macro '__dynamic_func_call' func(&id, ##__VA_ARGS__); \ ^~~~~~~~~~~ 1 warning generated. vim +224 drivers/media/platform/mtk-vcodec/vdec_msg_queue.c 200 201 static void vdec_msg_queue_core_work(struct work_struct *work) 202 { 203 struct vdec_msg_queue *msg_queue = 204 container_of(work, struct vdec_msg_queue, core_work); 205 struct mtk_vcodec_ctx *ctx = 206 container_of(msg_queue, struct mtk_vcodec_ctx, msg_queue); 207 struct mtk_vcodec_dev *dev = ctx->dev; 208 struct vdec_lat_buf *lat_buf; 209 210 lat_buf = vdec_msg_queue_dqbuf(&dev->msg_queue_core_ctx); 211 if (!lat_buf) 212 return; 213 214 ctx = lat_buf->ctx; 215 mtk_vcodec_set_curr_ctx(dev, ctx, MTK_VDEC_CORE); 216 217 lat_buf->core_decode(lat_buf); 218 219 mtk_vcodec_set_curr_ctx(dev, NULL, MTK_VDEC_CORE); 220 vdec_msg_queue_qbuf(&ctx->msg_queue.lat_ctx, lat_buf); 221 222 if (!list_empty(&ctx->msg_queue.lat_ctx.ready_queue)) { 223 mtk_v4l2_debug(3, "re-schedule to decode for core", 225 queue_work(dev->core_workqueue, &msg_queue->core_work); 226 } 227 } 228 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org